Question
- What is the oxidation number of Fe in $Fe_3O_4$?
- Balance the equation.
✓
Answer
- Let oxidation number of Fe in $Fe_3O_4$ be x
$\Rightarrow\text{x}=\frac{8}{3}$
It is the average oxidation number of $Fe^{2+}$ and $2Fe^{3+}$
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